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corn

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thejdman01

10-29-2004 19:19:02




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we had real bad winds in the midwest here early spring. some fields flatter then a table no kidding. we're picking one way and running over 99% of it but anyways. im not a weather buff at all. seed salesmen says depends on stalk soil etc which i dont believe 1 bit at all but heres my ?, what makes "down drafts" to cause a patch of corn to be flat and 3 or 4 stalks stand and then flat and then maybe 2 rows only 3 stalks stand and the rest is flat what causes that? ps theres no trees anything to effect that as well like it comes up over fence line nothing jsut open field. thanks for your input

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paul

11-01-2004 18:15:25




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 Re: corn in reply to thejdman01, 10-29-2004 19:19:02  
Racehorse genetics make more bu, but a weaker stalk. One popular brand is known around here to fall over, but people keep using it....

Those standing have a stronger root ball or stronger stalk.

Does it follows a compaction or spray pattern?

If it is totally random, it could be the planter was not cleaned out or you did not get pure seed - a mix of a workhorse brand in with the racehorse brand of seed.

It could be rootworms or ECB - they have developed resitance to crop rotation & can survive on a year of soybean stubble now. The standing plants were not affected, or were GMO BT corn seed mixed in.

Something is making those few plants stronger - genetics or resistance to pests or a sweet spot of soil....

One year I had real strong straight corn - except small patches here & there. All different brands. Finally dawned on my, I spot sprayed some broadleaf weeds, and that's where the goose-necked corn was. Herbicide injury.

--->Paul

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jim

10-31-2004 21:33:18




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 Re: corn in reply to thejdman01, 10-29-2004 19:19:02  
GMO or NON GMO I"ve seen it on both. Most of them i"ve seen was from wind, where it tunnels a path 5-15 feet wide for 30-50 feet. I"ve seen it do this about every 40 feet across in a small part of a field. Look at hilly ground, it"ll show up more. Some could be caused by rootworm, compaction, or possibly chemical carryover or overlap. (ie, poor root growth)



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Jim@concordfarms.

10-31-2004 07:20:53




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 Re: corn in reply to thejdman01, 10-29-2004 19:19:02  
My thinking for the past several years has been that years ago farmers had to let their corn dry down in the field before they ear picked it and stored it in cribs. It had to have a strong stalk to stand that long. Nowadays the plant breeders assume that we're going to shell and dry the corn as soon as possible. But with the price of propane, most people are letting it dry in the field as long as possible. Result: The stalk is working harder and longer than it was intended. Jim.

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Leland

10-31-2004 12:31:30




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 Re: corn in reply to Jim@concordfarms., 10-31-2004 07:20:53  
Come over and look year after year same area corn just falls down. field behind house now looks like it was drove thru.



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western Iowa

10-30-2004 20:04:47




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 Re: corn in reply to thejdman01, 10-29-2004 19:19:02  
Around here they call it cannabolizm, the plant will eat or draw all it needs to produce an ear, therefore leaving the stalk hollow. If you squeeze the lower part of the stalk it most likely be hollow. This happens in dry years most. The stalks that remain standing are not as high bred as the ones that fell.



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thejdman01

10-30-2004 13:20:52




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 Re: corn in reply to thejdman01, 10-29-2004 19:19:02  
gaurentee not root worms, a.always do some sort of rotation(mabey corn beans or corn wheet something, chop stalks use a ripper in fall and hten cultivate in spring so i know its not root worm for sure. some guys such as marv johnson or wally ramsey have 100 acre fields flat. i have patches of oh say an acre that are flat but my question is how can out of an acre patch lets say out of an acre patch why do you have flat flat flatIIflat flat flat flat flat flatIIflat flat flat
flat flat flatflat flat flatIIflat flat flat
IIflat flat flat the double eyes are the corn stalk i got standing and it looks just like that. i dont understand how some are standing staright and tall perfect perfect and all around it is flatter then a table. i would think if it was a shear wind itd all be flat
and that i have patches that are knocked down that are surrounded by standing corn which i know are downdrafts but im trying to figure out how the standing is in the middle of the flat not the flat in the middle of the standing i know that is downdrafts i cant figure out out of a 10 acre patch lets say how 99 percent can be perfectly flat yet some can stand straight and true perfect. and i dont believe like my seed guy tried to blow me that maybe those plants got a later stalk after the damage occured cuase thats bs cause the damage happened in middle july. just trying to figure out whats going on. also does anyone know the cause of the downdrafts what makes them?? thanks alot i know long and confusing but trying to get to the bottom of it

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CNKS

10-30-2004 18:54:13




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 Re: corn in reply to thejdman01, 10-30-2004 13:20:52  
Down drafts and wind shear (not sure they are the same) are part of a thunderstorm -- I'm not a meterologist, so I don't know the cause. I would suggest you call your local county extension agent. Unless yours is an isolated case, he has heard a lot of reports and probably knows what happened to your corn, downdrafts or otherwise. I retired from the Kansas Ag Experiment Station 3 years ago, genetically modified corn of some sort had been around for a few years, never heard that listed as the cause of weak stalks or roots, not saying it's not possible. Such corn usually has only one or two genes to cause it to be resistant to a certain herbicide or insecticide -- that shouldn't cause it to go down. But, I was not doing that kind of research, so I really don't know. It is hard to do a diagnosis by internet -- hard enough in the field.

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Leland

10-30-2004 18:14:36




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 Re: corn in reply to thejdman01, 10-30-2004 13:20:52  
Had winds here last night now a field behind me 80% of it went down and this corn was 9-10 ft tall. I still say it's GM corn is made to grow not stand. But whats funny there is a field that was planted 2-3 years ago never picked but most of it is still standing, I belive it was a waerfowl food plot and they is no way that is GM corn .



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CNKS

10-30-2004 12:49:56




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 Re: corn in reply to thejdman01, 10-29-2004 19:19:02  
I have personally seen the downdraft thing -- the same thing that has pushed planes into the ground. I would think that it would not effect a whole field, but only an acre or so. Happened to aome of my corn in 2000 these were small research plots, really made the data hard to interpret. Otherwise, you may have rootworms as previously mentioned. If you have continuous corn (a crop of corn on the same land at least two years in a row) rootworm damage is likely, at least where I live. If corn follows (for example) soybeans, it won't happen. There are also stalk rots and corn borers, etc, which are rarer, but can happen.

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Man without his name

10-30-2004 12:03:18




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 Re: corn in reply to thejdman01, 10-29-2004 19:19:02  
Possibly insect damage in the stalks. If you'da said it was curved ; corn rootworm > Mwhn.



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Leland

10-29-2004 21:38:55




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 Re: corn in reply to thejdman01, 10-29-2004 19:19:02  
I don't buy that wind BS they had that for years, I noticed that since they pushed all that G.M corn that it just does not stand like the non GMO fields around here, looks like someone drove thru fields.



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